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Disk drive cover with top and bottom layers electrically grounded with first and second flaps and method of manufacturing the same

a technology of electrical grounding and top and bottom layers, applied in the direction of casings/cabinets/drawers, instruments, casings/cabinets/drawers, etc., can solve the problems of damping material, preventing the utilization of prefabricated solid sheets of laminated metal, and difficult grounding of the lowermost layer

Inactive Publication Date: 2008-06-10
WESTERN DIGITAL TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a disk drive cover that includes a bottom layer and a top layer with a damping layer in between. The bottom layer has a first flap and the top layer has a second flap that extend into the bottom layer. The first and second flaps are in mechanical communication with each other to electrically ground the top and bottom layers. The cover also includes an electrically insulative coating on the top and bottom layers. The technical effect of the invention is to provide a reliable electrical connection between the top and bottom layers of the disk drive cover, which improves the performance and reliability of the disk drive.

Problems solved by technology

This would make grounding of such lowermost layer difficult.
However, this would preclude utilization of prefabricated solid sheets of laminated metal and damping material that may be readily stamped to form disk drive cover units.

Method used

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  • Disk drive cover with top and bottom layers electrically grounded with first and second flaps and method of manufacturing the same
  • Disk drive cover with top and bottom layers electrically grounded with first and second flaps and method of manufacturing the same
  • Disk drive cover with top and bottom layers electrically grounded with first and second flaps and method of manufacturing the same

Examples

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Embodiment Construction

[0022]Referring now to the drawings wherein the showings are for purposes of illustrating preferred embodiments of the present invention only, and not for purposes of limiting the same, FIGS. 1-10 illustrate a disk drive including a cover in accordance with aspects of the present invention.

[0023]Referring now to FIG. 1, there is depicted a perspective view of a disk drive 10. The disk drive 10 includes a disk drive base 12, a disk 14 rotatably coupled to the disk drive base 12. The disk 14 is supported by a spindle motor 16 that is configured to rotate the disk 14. The disk drive 10 further includes an actuator 18 disposed adjacent the disk 14 and rotatably coupled to the disk base 12. The disk drive 10 further includes a disk drive cover 20 attached to the disk drive base 12 enclosing the disk 14 and the actuator 18 between the cover 20 and the disk drive base 12. Cover fasteners 22, such as screws, may be used to attach the cover 20 to the disk drive base 12. A spindle motor faste...

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PUM

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Abstract

There is provided a disk drive cover. The disk drive cover includes a bottom layer including a metallic bottom layer body and a first flap formed in the bottom layer body. The first flap defines an exposed inner body edge of the bottom layer body. The disk drive cover further includes a damping layer. The disk drive cover further includes a top layer including a metallic top layer body and a second flap. The second flap is formed in the top layer body with the second flap extending into the bottom layer adjacent the first flap. The second flap defines an exposed second flap edge. The second flap edge is disposed in mechanical communication with the exposed inner body edge for electrically grounding the top and bottom layers.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates generally to disk drives, and in particular to a disk drive cover with top and bottom layers electrically grounded with first and second flaps, and a method of manufacturing the same.[0003]2. Description of the Prior Art[0004]The typical hard disk drive includes a head disk assembly (HDA) and a printed circuit board assembly (PCBA) attached to a disk drive base of the HDA. The head disk assembly includes the disk drive base, a cover, at least one magnetic disk, a spindle motor for rotating the disk, and a head stack assembly (HSA) that includes a transducer head supported by a slider for reading and writing data from and to the disk.[0005]The spindle motor includes a spindle motor hub that is rotatably attached to the disk drive base and supports at least one disk. The head stack assembly includes an actuator assembly including the sliders and a flex circuit cable assembly attached to the a...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G11B33/14
CPCG11B5/102G11B33/1493
Inventor BERDING, KEITH R.CAMARA, GABRIEL F.CHEONG, PANG CHOUN
Owner WESTERN DIGITAL TECH INC
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